Aerojet Rocketdyne, Sierra Nevada Complete Solar Electric Propulsion Concept Study; Eileen Drake Quoted

Eileen Drake

Aerojet Rocketdyne and Sierra Nevada Corp. have concluded a four-month study that focused on modifying advanced solar electric propulsion vehicle concepts for future human exploration missions and deep space habitation.

Sacramento, Calif.-based Aerojet said Wednesday it supplemented Sierra Nevada’s Lunar Gateway concept with an SEP module for the Power and Propulsion Element study under NASA’s Next Space Technologies for Exploration Partnerships-2 program.

Aerojet’s SEP module includes power generating solar arrays, power distribution and management components, and a maneuver system.

NASA intended PPE to demonstrate the ability to operate a 50-kilowatt SEP system and transfer 27 kW of power across a standard interface to a deep space habitat.

“Utilizing electric propulsion for habitat assembly and operations will provide substantial mass savings in propellant, resulting in decreased mission costs and long-term sustainability,” said Aerojet CEO and President Eileen Drake.

Aerojet and Sierra Nevada are also working on Appendix A of NextSTEP-2, which focuses on developing prototypes of a deep space habitat system.

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